1 files changed, 1 insertions, 1 deletions
diff --git a/testing/talos/talos/tests/devtools/addon/content/tests/server/actor.js b/testing/talos/talos/tests/devtools/addon/content/tests/server/actor.js
index 7180365c40..e27059d420 100644
--- a/testing/talos/talos/tests/devtools/addon/content/tests/server/actor.js
+++ b/testing/talos/talos/tests/devtools/addon/content/tests/server/actor.js
@@ -12,7 +12,7 @@ class DampTestActor extends Actor {
     super(conn, dampTestSpec);
   }
 
-  testMethod(arg, { option }, arraySize) {
+  testMethod(arg, { option }) {
     // Emit an event with second argument's option.
     this.emit("testEvent", option);